Add Three-digit Numbers
Lesson 1
Objective-Make a hundred to add a three-digit number
CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones
Adding Two Three-Digit Numbers AAA Math (NF)
Lesson 2
Objective-Students will add numbers in the hundreds
CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones
Three-Digit Addition Demonstration (Khan Academy)
Three-Digit Addition (Click on Level 6)
Lesson 3
Objective-Add 10 or 100 mentally
CCSS-2.NBT.8 Mentally add 10 or 100 to a given number 100-900
Video of How to Mentally Add 10 or 100.
Lesson 4
Objective-Regroup the ones to add three-digit numbers
CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones
Adding Two Three-Digit Numbers AAA Math (NF)
Lesson 5
Objective-Regroup tens to add three-digit numbers
CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones
Three-Digit Addition (Click on Level 6)
Lesson 6
Objective-Add three-digit numbers with regrouping
CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones
Three-Digit Addition with Regrouping (Soft Schools)
Three-Digit Addition (Click on Level 6)
Lesson 7
Objective-Rewrite an addition problem vertically that was written horizontally, then add
CCSS-2.0A.2 Fluently add and subtract within 20 using mental strategies
Three-Digit Addition (Click on Level 6)
Adding Three-Digit Numbers (AAA Math)
Lesson 8
Objective-Use the guess, check and revise strategy to solve problems
CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones
Three-Digit Addition (Click on Level 6)
Tic-Tac-Toe Three Digit Addition (Click on "Play now," then "Hard," then "Addition")